MACRO serpentine_300px_1
  CLASS CORE ;
  ORIGIN  0 0 ;
  FOREIGN serpentine_300px_0 0 0 ;
  SIZE 420 BY 420 ;
  SYMMETRY X Y ;
  SITE CoreSite ;
  PIN in_fluid
    DIRECTION INPUT ;
    USE SIGNAL ;
    PORT
      LAYER met2 ;
        RECT 53 23 67 37 ;
    END
  END in_fluid
  PIN out_fluid
    DIRECTION OUTPUT ;
    USE SIGNAL ;
    PORT
      LAYER met3 ;
        RECT 23 23 37 37 ;
    END
  END out_fluid
  OBS
    LAYER met2 ;
      RECT 60 0 390 420 ;
    LAYER met3 ;
      RECT 60 0 390 420 ;
  END
  PROPERTY CatenaDesignType "deviceLevel" ;
END serpentine_300px_1